/*
    EIB Demo program - reads group telegrams
    Copyright (C) 2005-2011 Martin Koegler <mkoegler@auto.tuwien.ac.at>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "common.h"

int
main (int ac, char *ag[])
{
  int len;
  EIBConnection *con;
  eibaddr_t dest;
  eibaddr_t src;
  uint8_t buf[200];

  if (ac != 2)
    die ("usage: %s url", ag[0]);
  con = EIBSocketURL (ag[1]);
  if (!con)
    die ("Open failed");

  if (EIBOpen_GroupSocket (con, 0) == -1)
    die ("Connect failed");

  while (1)
    {
      len = EIBGetGroup_Src (con, sizeof (buf), buf, &src, &dest);
      if (len == -1)
        die ("Read failed");
      if (len < 2)
        die ("Invalid Packet");
      if (buf[0] & 0x3 || (buf[1] & 0xC0) == 0xC0)
        {
          printf ("Unknown APDU from ");
          printIndividual (src);
          printf (" to ");
          printGroup (dest);
          printf (": ");
          printHex (len, buf);
          printf ("\n");
        }
      else
        {
          switch (buf[1] & 0xC0)
            {
            case 0x00:
              printf ("Read");
              break;
            case 0x40:
              printf ("Response");
              break;
            case 0x80:
              printf ("Write");
              break;
            }
          printf (" from ");
          printIndividual (src);
          printf (" to ");
          printGroup (dest);
          if (buf[1] & 0xC0)
            {
              printf (": ");
              if (len == 2)
                printf ("%02X", buf[1] & 0x3F);
              else
                printHex (len - 2, buf + 2);
            }
          printf ("\n");
        }
      fflush (stdout);
    }

  EIBClose (con);
  return 0;
}
